Which bats can I use and what happens if my bat is not certified?

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From section 30 of the 2027 Australian Championship Regulations: Bring only certified bats. Teams should have their bats checked before the championship and bring only bats on the certified lists. Bats are checked against the WBSC-SD certified bat list and then, if required, the USA Softball certified list. Certified bats are stamped or labelled with the Softball Australia logo. Check at the technical meeting. Each team brings all its bats to the technical meeting, or they are checked before the team's first game. A bat that cannot be positively identified because the manufacturer's name, logo or model number is worn away or illegible is rejected. A bat that fails is held by the Tournament Chief Umpire until the tournament ends. Responsibility. Coaches are responsible for making sure all bats are checked and certified, and compliance rests with all participants, not just the umpires. Batted ball speed. The WBSC-SD standard is 161 km/h (100 mph) and the USA Softball standard is 157.7 km/h (98 mph). Where available, bats are checked with an approved bat compression tester. If a non-certified bat is used in a game (first time): if found before the batter completes their turn, the batter is out, the play is nullified if applicable and the batter is ejected. If found after their turn at bat, the batter-runner is out, runner advances are nullified, any out made on the play stays and the batter-runner is ejected. Second time by any player on the same team during the championship: the same applies and the head coach is also ejected.